Thill-coupling



1 (No Model.)

G. W. .STOWE.

THILL COUPLING.

No. 317,685. Patented May 12, 1885.

ATTORNEY WITNESSES INVENTOR W BY M UNITED STATES PATENT OFFICE.

GEORGE W. STOWE, OF NEW HAVEN, CONNECTICUT.

THlLL-COUPL|NG.-

SPECIFICATION forming part of Letters Patent No. 317,685, dated May 12, 1885. Application filed September 4, 1884. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. SToWE, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Thill-Gouplings, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to the antirattling springs employed in thill-couplin gs; and itconsists partly in an anti-rattling spring folded into several thicknesses; partly in the combination of such a spring with a regulatingscrew, which turns into and out of holes screwtapped in said thicknesses; partly in a spring thus constructed and provided with a bend or offset for holding the middle part of the spring up out of the way of the clip; and, finally, in a terminal flexible piece of metal attached to the anti-rattling spring and used for holding it in place, as hereinafter set forth.

In the accompanying drawings, Figure 1 represents a perspeetivetview of my improved thill-coupling. Fig. 2 represents a vertical section through the same on the central 1ongitudinal line of the thill-iron; and Fig. 3 represents a detail view of the anti-rattling spring.

A designates the axle; B, the clip bolted to the same, as usual; 0, the two lugs on said clip; D, the thill-iron provided with an eye, 01, which sets between saidlugs; E, the pintle-bolt which passes through said eye and lugs, and F the anti-rattling spring provided with a curved part, f, that bears outward against said eye. This spring is bent in the middle at g, and has its rear end provided with a thin plate, h, extending above the clip and sufficiently flexible to be bent down thereon, as shown in Fig. t

1, to prevent the spring from falling through. An offset, 6, is formed in the rear part of the spring, just below the lugs G, to keep the bend g and proximate parts of the spring out of contact with the bottom plate, H, of said clip. In the forward part of spring F, between the bend g and the curved part f, are made two folds forming three thicknesses, l, 2, and 3, of metal.

I designates a screw which turns at will into or out of said thicknesses 1, 2, and 3, the latter being screw-tapped to receive it. The effect of this screw is to increase the stiffness of the spring by holding these thicknesses together. By screwing it out of the inner thickness 3 this effect is lessened. Said screw is provided with a washer or bearing-plate, J, which is in contact with the external face of the spring. The additional folds increase the number of screw-threads, and thus give a better hold to the screw.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. An anti-rattling spring for a thill-coupling folded to form the thicknesses l, 2, 3, for the purpose set forth.

2. Ananti-rattling spring for a thill-coupling provided with the stiflening-folds, in combination with a screw which takes into the thicknesses formed thereby, substantially as and for the purpose set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE W. STOWE. Witnesses:

GEORGE TERRY, J. EDWARD LUDINGTON- 

